Reciprocating vacuum pump structure with anti-abrasion and anti-blocking functions
By designing corrective components and through-holes, the problems of tilting and wear of the pressure plate and blockage of the one-way valve in the reciprocating vacuum pump were solved, enabling convenient installation and efficient vacuuming of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-07
AI Technical Summary
Existing reciprocating vacuum pumps suffer from problems such as reduced sealing performance and blockage of the one-way valve due to friction between the pressure plate and the inner wall of the casing during use.
A corrective component is used to prevent the pneumatic plate from tilting. Combined with the through-piece design, the through-piece is driven by airflow to extend into the one-way valve pipe to prevent blockage. The pneumatic plate is elastically supported by a spring bracket to avoid wear.
This facilitates easy installation of the device, prevents friction between the pressure plate and the inner wall of the housing, reduces the risk of wear, avoids clogging of the one-way valve, and ensures the vacuuming effect.
Smart Images

Figure CN224093517U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum pump technology, specifically to a reciprocating vacuum pump structure with anti-wear and anti-clogging function. Background Technology
[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical, or physicochemical methods to evacuate a container and create a vacuum. In simpler terms, a vacuum pump is a device that uses various methods to improve, generate, and maintain a vacuum in a closed space. Based on their working principle, vacuum pumps can be broadly classified into two types: gas trapping pumps and gas transfer pumps. They are widely used in industries such as metallurgy, chemical engineering, food processing, and electronic coating. Reciprocating vacuum pumps are dry vacuum pumps.
[0003] Chinese patent CN220646124U discloses a reciprocating vacuum pump for vacuum pumping processing.
[0004] However, the above-mentioned disclosed solutions have the following shortcomings: In actual use, the reciprocating linear sliding structure of the above solutions has the problem of friction and cylinder scoring with the inner wall of the air pressure chamber structure, which leads to a decrease in the airtightness of the above-mentioned device.
[0005] This invention proposes a reciprocating vacuum pump structure with anti-wear and anti-clogging function to solve the problem. Utility Model Content
[0006] The purpose of this invention is to correct the position of the air pressure plate during actual use through the correction component of this device, thereby preventing the air pressure plate from tilting and causing it to come into contact with and squeeze the inner wall of the housing. At the same time, this device can achieve the connection of the internal pipe of the one-way valve through the through part, reducing the blockage of the air inlet and outlet ends, thereby overcoming the problems in the background art mentioned above.
[0007] Based on the above technical concept, the technical solution adopted by this utility model is as follows:
[0008] A reciprocating vacuum pump structure with anti-wear and anti-clogging function includes a base, a transmission component connected to the top of the base for outputting power to the vacuum structure, a housing connected to the top of the base, a one-way air inlet valve connected through the side of the housing, a one-way air outlet valve connected through the side of the housing away from the one-way air inlet valve, a slidably connected pressure plate provided inside the housing, a correction component connected to the pressure plate to prevent the pressure plate from tilting, and a sliding component connected to the inner wall of the housing to ensure unobstructed flow.
[0009] Further defining the above technical solution, the transmission component includes a motor base connected to the top of the base, a rotating motor connected to the top of the motor base, a turntable connected to the output end of the rotating motor, a reciprocating transmission rod rotatably connected to the other side of the turntable, and a transmission component rotatably connected to the other end of the reciprocating transmission rod.
[0010] Further defining the above technical solution, the top of the base is provided with a sliding groove, and a reciprocating sliding base is slidably connected to the inner wall of the sliding groove. The top of the reciprocating sliding base is connected to the transmission component, and a connecting component is connected to the top of the reciprocating sliding base. A connecting rod is connected to the other end of the connecting component, and the connecting rod is connected to the air pressure plate.
[0011] Further defining the above technical solution, the corrective component includes a rotating connecting rod rotatably connected to the side of the pneumatic plate away from the connecting rod, and a transmission connecting rod rotatably connected to the center of the rotating connecting rod.
[0012] Further defining the above technical solution, one end of the rotating connecting rod is rotatably connected to a connecting transmission rod, the top of the transmission connecting rod is connected to a spring bracket, a spring is connected to the side of the spring bracket, and the other end of the spring is connected to the side of the rotating connecting rod.
[0013] As a further limitation of the above technical solution, the two ends of the transmission connecting rod are rotatably connected to the connecting transmission rod, and the connecting transmission rod provided on the rotating connecting rod is rotatably connected to the connecting transmission rod provided on the transmission connecting rod.
[0014] Further defining the above technical solution, the two sets of connecting transmission rods are rotatably connected with abutting members at their rotatable connection points. The abutting members contact and press against the inner wall side of the housing, and the abutting members are slidably connected to the inner wall side of the housing.
[0015] Further defining the above technical solution, the sliding component includes a sliding tube connected to the inner wall of the housing, a blocking member at one end of the sliding tube, a through hole at the center of the blocking member, a through member slidably connected to the inner arc surface of the sliding tube, the sliding component being symmetrically arranged on both sides of the inner wall of the housing, the through member facing the one-way air inlet valve and the one-way air outlet valve, and a vent hole on the side of the sliding tube.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. Simple installation: The combination structure of the base and motor base makes this device easy to install, reducing the difficulty of fixing and installing the device.
[0018] 2. To prevent wear, this device can correct the position of the air pressure plate through a correction structure, thereby avoiding the air pressure plate from being squeezed and rubbed against the inner wall of the housing;
[0019] 3. To prevent blockage, this device uses airflow to allow the through-piece to extend into the check valve pipeline, thereby preventing blockage of the check valve. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the housing structure in a reciprocating vacuum pump structure with anti-wear and anti-clogging function according to the present invention;
[0022] Figure 2 This is a schematic diagram of the one-way air inlet valve in a reciprocating vacuum pump structure with anti-wear and anti-clogging function according to this utility model;
[0023] Figure 3 This is a schematic diagram of the spring bracket in a reciprocating vacuum pump structure with anti-wear and anti-clogging function according to the present invention;
[0024] Figure 4 This is a schematic diagram of the through-hole component in a reciprocating vacuum pump structure with anti-wear and anti-clogging function according to this utility model.
[0025] The components include: 1. Base; 2. Transmission components; 201. Motor base; 202. Rotating motor; 203. Turntable; 204. Reciprocating transmission rod; 205. Reciprocating sliding base; 206. Sliding groove; 207. Transmission component; 208. Connecting component; 209. Connecting rod; 3. Housing; 4. One-way air inlet valve; 5. One-way air outlet valve; 6. Correction component; 601. Rotating connecting rod; 602. Transmission connecting rod; 603. Spring bracket; 604. Spring; 605. Connecting transmission rod; 606. Abutment; 7. Sliding component; 701. Sliding tube; 702. Vent hole; 703. Blocking component; 704. Through component. Detailed Implementation
[0026] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail below.
[0027] Example 1: This example provides a reciprocating vacuum pump structure with anti-wear and anti-clogging function, such as... Figures 1-4As shown, it includes a base 1, a transmission component 2 connected to the top of the base 1 for outputting power to the vacuum structure, a housing 3 connected to the top of the base 1, a one-way air inlet valve 4 connected through the side of the housing 3, a one-way air outlet valve 5 connected through the side of the housing 3 away from the one-way air inlet valve 4, a slidably connected air pressure plate provided inside the housing 3, a straightening component 6 connected to the air pressure plate to prevent the air pressure plate from tilting, and a sliding component 7 connected to the inner wall of the housing 3 to ensure unobstructed flow.
[0028] The transmission component 2 includes a motor base 201 connected to the top of the base 1. A rotating motor 202 is connected to the top of the motor base 201. A turntable 203 is connected to the output end of the rotating motor 202. A reciprocating transmission rod 204 is rotatably connected to the other side of the turntable 203. A transmission component 207 is rotatably connected to the other end of the reciprocating transmission rod 204.
[0029] The base 1 has a sliding groove 206 on its top. A reciprocating sliding base 205 is slidably connected to the inner wall of the sliding groove 206. The top of the reciprocating sliding base 205 is connected to the transmission component 207. A connector 208 is connected to the top of the reciprocating sliding base 205. The other end of the connector 208 is connected to a connecting rod 209. The connecting rod 209 is connected to the air pressure plate.
[0030] The corrective component 6 includes a rotating connecting rod 601 that is rotatably connected to the side of the pneumatic plate away from the connecting rod 209, and a transmission connecting rod 602 is rotatably connected to the center of the rotating connecting rod 601.
[0031] One end of the rotating connecting rod 601 is rotatably connected to the connecting transmission rod 605. The top of the transmission connecting rod 602 is connected to the spring bracket 603. The side of the spring bracket 603 is connected to the spring 604. The other end of the spring 604 is connected to the side of the rotating connecting rod 601.
[0032] The transmission connecting rod 602 is rotatably connected to both ends of the transmission connecting rod 605, and the connecting connecting rod 605 provided on the rotating connecting rod 601 is rotatably connected to the connecting connecting rod 605 provided on the transmission connecting rod 602.
[0033] The specific working principle is as follows: This device can achieve the effect of a vacuum pump while avoiding the wear and blockage problems of traditional vacuum pumps. When this device is in use, the combination of rotating motor 202 and turntable 203 can drive the reciprocating sliding base 205 to slide linearly back and forth. The reciprocating sliding base 205 can drive the pressure plate to slide back and forth through connecting piece 208 and connecting rod 209. When the pressure plate slides in the direction of rotating motor 202, the air inside the target cavity is drawn into the housing 3 through one-way air inlet valve 4. After the pressure plate slides in the opposite direction, the gas inside the housing 3 can be discharged outward through one-way air outlet valve 5, thereby reducing the air inside the target cavity and achieving the vacuuming effect.
[0034] During the reciprocating linear sliding process of the air pressure plate, the position of the sliding air pressure plate can be corrected by the elastic compression contact between the abutment 606 in the correction component 6 and the inside of the housing 3, thereby preventing the air pressure plate from tilting and causing it to contact and compress the inner wall of the housing 3. The combination of the spring bracket 603 and the spring 604 can achieve the elastic abutment effect of the abutment 606.
[0035] When the device is in use, the sliding component 7 allows air to enter through the one-way air inlet valve 4 when the air pressure plate slides toward the rotating motor 202. At this time, the side of the through-piece 704 contacts the blocking component 703, and the gas passes through the vent hole 702 on the side of the sliding tube 701. After the air pressure plate slides in the opposite direction, the air pressure inside the housing 3 rises, and the through-piece 704 extends into the one-way air pressure valve 4 under the action of the air pressure, thereby preventing blockage inside. At this time, the one-way air inlet valve 4 does not enter and therefore does not block the through-piece 704.
[0036] Example 2: This example provides a reciprocating vacuum pump structure with anti-wear and anti-clogging function, such as... Figures 1-4 As shown, the two sets of connecting transmission rods 605 are rotatably connected with abutment members 606. The abutment members 606 contact and press with the inner wall side of the housing 3, and the abutment members 606 are slidably connected with the inner wall side of the housing 3.
[0037] The sliding component 7 includes a sliding tube 701 connected to the inner wall of the housing 3. One end of the sliding tube 701 is provided with a blocking member 703. The blocking member 703 has a through hole at its center. A through member 704 is slidably connected to the inner arc surface of the sliding tube 701. The sliding component 7 is symmetrically arranged on both sides of the inner wall of the housing 3. The through member 704 faces the one-way air inlet valve 4 and the one-way air outlet valve 5. A vent hole 702 is provided on the side of the sliding tube 701.
[0038] The specific working principle is as follows: This device can achieve the effect of unidirectional gas flow, thereby achieving the vacuum processing effect of this device. At the same time, the linear reciprocating sliding structure of this device can linearly limit the sliding of the pressure plate, thereby avoiding the problem of wear at the edge of the pressure plate caused by tilting of the pressure plate.
[0039] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments, which is intended to enable those skilled in the art to understand and apply the present invention. However, it should not be assumed that the specific implementation of the present invention is limited to these descriptions.
Claims
1. A reciprocating vacuum pump structure with anti-wear and anti-clogging function, comprising a base (1), characterized in that, The base (1) is connected to a transmission component (2) at the top, which is used to output power to the vacuum structure. The base (1) is connected to a housing (3) at the top. A one-way air inlet valve (4) is connected through the side of the housing (3). A one-way air outlet valve (5) is connected through the side of the housing (3) away from the one-way air inlet valve (4). A sliding air pressure plate is provided inside the housing (3). A correction component (6) is connected to the air pressure plate to prevent the air pressure plate from tilting. A sliding component (7) is connected to the inner wall of the housing (3) to ensure smooth flow.
2. The reciprocating vacuum pump structure with anti-wear and anti-clogging function according to claim 1, characterized in that, The transmission component (2) includes a motor base (201) connected to the top of the base (1), a rotating motor (202) connected to the top of the motor base (201), a turntable (203) connected to the output end of the rotating motor (202), a reciprocating transmission rod (204) rotatably connected to the other side of the turntable (203), and a transmission component (207) rotatably connected to the other end of the reciprocating transmission rod (204).
3. The reciprocating vacuum pump structure with anti-wear and anti-clogging function according to claim 2, characterized in that, The base (1) has a sliding groove (206) on the top. A reciprocating sliding base (205) is slidably connected to the inner wall of the sliding groove (206). The top of the reciprocating sliding base (205) is connected to the transmission component (207). A connector (208) is connected to the top of the reciprocating sliding base (205). A connecting rod (209) is connected to the other end of the connector (208). The connecting rod (209) is connected to the air pressure plate.
4. The reciprocating vacuum pump structure with anti-wear and anti-clogging function according to claim 3, characterized in that, The corrective component (6) includes a rotating connecting rod (601) rotatably connected to the side of the pneumatic plate away from the connecting rod (209), and a transmission connecting rod (602) is rotatably connected at the center of the rotating connecting rod (601).
5. The reciprocating vacuum pump structure with anti-wear and anti-clogging function according to claim 4, characterized in that, One end of the rotating connecting rod (601) is rotatably connected to the connecting transmission rod (605), the top of the transmission connecting rod (602) is connected to the spring bracket (603), the side of the spring bracket (603) is connected to the spring (604), and the other end of the spring (604) is connected to the side of the rotating connecting rod (601).
6. The reciprocating vacuum pump structure with anti-wear and anti-clogging function according to claim 5, characterized in that, The transmission connecting rod (602) is rotatably connected to the two ends of the transmission connecting rod (605), and the connecting connecting rod (605) provided on the rotating connecting rod (601) and the connecting connecting rod (605) provided on the transmission connecting rod (602) are rotatably connected to each other.
7. The reciprocating vacuum pump structure with anti-wear and anti-clogging function according to claim 6, characterized in that, The two sets of connecting transmission rods (605) are rotatably connected with abutment (606), the abutment (606) contacts and presses against the inner wall side of the housing (3), and the abutment (606) is slidably connected to the inner wall side of the housing (3).
8. The reciprocating vacuum pump structure with anti-wear and anti-clogging function according to claim 7, characterized in that, The sliding component (7) includes a sliding tube (701) connected to the inner wall of the housing (3). One end of the sliding tube (701) is provided with a blocking member (703). A through hole is provided at the center of the blocking member (703). A through member (704) is slidably connected to the inner arc surface of the sliding tube (701). The sliding component (7) is symmetrically arranged on both sides of the inner wall of the housing (3). The through member (704) faces the one-way air inlet valve (4) and the one-way air outlet valve (5). A vent hole (702) is provided on the side of the sliding tube (701).
Citation Information
Patent Citations
Reciprocating vacuum pump
CN220646124U